3		8		6		4
	7
		5		3			7
3			5		1
						4
5		7		8		2

Difficulty: Very easy (0)

				6
	8	2	4
			2			7	3
		6
					1
2	3			7
				3	7	6
			8

Difficulty: Very easy (0)

			5
			6			5	4
	4						8
	1				3	6	5
4	6	3				8
2						3
3	7			1
				3

Difficulty: Super easy (0)

8			4			6
				8	2
	7
2		8				7
	4				1		6
						5
		4	5
	6			4			5

Difficulty: Easy (0)